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The event team turned to children's decor elements--balloons, paper streamers, soap bubbles--to turn Madrid Sports Arena into a party for 2,500 guests.
Guests--largely young male engineers--enter through a balloon tunnel.
The event served as both the company's summer party and its 20th anniversary celebration.
The event team turned the arena into a huge theme park, with bars, inflatable castles, games and a stage shrouded in smoke and lasers.
Playful decor elements such as bubbles gave a party atmosphere without giving the suggestion that the sponsor overspent on the event.
Cirque performers take the stage.
Guests enjoy kid-style treats such as cotton candy.
A famous DJ takes the stage with the company's "20 greatest hits"--its achievements over its 20 years in business.
The 20th birthday came comes onstage, and go-go dancers pop out of it.
Balloons made up tunnels, walls and a 20-meter-tall dome above guests.
![](https://www.specialevents.com/sites/specialevents.com/files/styles/gal_landscape_main_2_standard/public/Cow_20th_01_1.jpg?itok=kwmfaGdo)